Horizontal wall construction



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j Sm@ ALF .Ad Smm .0.1 ,HUF 0 H Dec. 27; 1927.

Patented Dec. 27, 1927,

xUNITED STATES PATENT OFFICE.

meer@ s ASHENHUssr. Grimace, lLLINoIs, ASSI-Groa- BY maar teelt-imams, TQ INSULEX CQRPORATION. QF CHICAGO, ILLINOIS, A CORIORAllIONF HELAWARE.

HORIZONTAL WALL CONSTRUCTION.

Application filed February My invention relates to floor| and ceiling construction and particularly to a construction in which the structural elements are fully protected. against lire.

One ot the objects of my invention is to provide a construction and a` method. ol" iustalling the same in which light-weight steel joists, sometimes called metal lumber., are protected 'from tire.

Another object of my invention to-provide such a construction in which a high degree of insulation is secured, both as to heat and sound transfer.

A further object is to provide such a con..- struction in which a material is utilized that accomplishes the desired results but which is relatively extremely light, thereby red ucing the gross dead load to be carried by the structure. The desired result is secured by utilizing a material such as disclosed in my prior Reissue Patent Number 15,952 ot November 25, 1924.

The invention Will be more readily understood by reference to the accompanyingl drawings, in which;

Fig. 1 is a perspective view showing the parts in position to receive the plastic insulating material, and

Fig. 2 is a sectional View showing a com* pleted ceiling With the insulating material in place.

In the drawing, it will be seen that I provide structural elements 10, Which may be in the form of steel I-beams as shown, with cross-ties 1()a ot Wire serving to brace the beams laterally. At any rate, the bea-ms `are provided with flanges 11, on which are supported the cross pieces 12, which may he ot EZ X 4 Wood. Secured to the cross pieces are elements 13, corresponding to sleepers, the side faces ot Which converge downwardly. The sleepers and cross pieces may be assembled and lowered into the position shown in Fig. 1, or, it the cross ties 10 are in position, the assembled cross pieces and sleepers may be inserted from beneath by tilting the cross pieces. `Wlien suitably positioned, the sheets 141, which may be com posed of plaster board, are secured to the sleepers and provide a smooth under surtace adapted to receive plaster, indicated at l5.

l/Vhen the parts are assembled, de scribed, a body of plastic material such as disclosed in my patent heretofore identi lied, is mixed and promptly poured onto the 16, 1925. serial No. 9.644.

plaster board. lt immediately expands :1nd llows up around the side ed; ot the. tlanges. Il. desired, a quantity may be poured that will completely imbed the lower portions oil. the l-beanus- The. material also rises into close Contact With and surrounds the sleepers and due to their tapered form a downward pull on. the sleepers will cause a lateral wedging action on the cellular material. and hold the sleepers lirmly in position.

The plastic materi al disclosed is relatively very ligl'lt in weight and the plaster board will. furnish ample support therefor. In Fig. 2, the cellular material is indicated at lG, the. langes oit the l-beams being embedded thereinn llVliile I pre'ler to use thi torni ot n1uterial as disclosed and claimed in my said prior patent, l do not Wish to be restricted in this particular except so tar as it is specili'ally claimed. I have liound that very good results may be attained by a mixture as follows- 100 pounds ot calcined gypsum, 3% ounces ot commercial retarder, (i1/1 pounds ot a suitable carbonate such as calcium carbonate, and 121/2 pounds ot aluminum sulphate containing its rater ot crystallization, all of such .irr'lredients bein finely ground and thorougl dry state.

The arrangement provides complete tireprooling so fai.' as concerns the communieL tion of llames from. one floor to another. The structural steel elements are completely protected and efficient insulation to heat and sound is assured. The material employed :is light in Weight and may be installed at extremely low labor cost.

I contemplate the utilization ot any other suitable means .tor providing a form, either permanent or temporary, beneath and` spaced from the lower extremities ot the structural elements, on which the plastic mass may be poured, in lieu ot the plasterboard 141-. as illustrated. The resulting monolithic body ot rigid cellular material will eltectually .insulate against sound and heat transference and will .lireproot the joists, Whether et Wood or metal. Preferably l employ a permanent tireproot :toi-m element, such as plasterboard, and thereby avoid the neces sity for reinforcement Within the body of insulating material.

Obviously the construction shown may be modified within certain limits and I do not D in ily mixed in a wish to be limited except as indicated in the appended claims.

I claim:

l.`In horizontal wall construction, the combination of flanged structural elements, sleepers supported by the flanges oi said elements, an imperforate ceiling element snp;

jecting 1flanges of adjacent elements, a ceil, ing .element secured to the sleepers, and av monolithic body of ireprooi cellular material supported on said ceiling element and embedding the lower extremities of the structural elements therein.

3. In a building the combination of joists, sleepers disposed between the joists7 the rbottom faces of the sleepers-being in a plane below the bottom faces of the joists, trans- Verse members to which the sleepers are connected, said transverse members being supported on thel joists, an imperiorate forni 'element secured to the bottom faces of the sleepers, and a monolithic body of cellular insulating material supported on said form and embedding said sleepers and the lower extremities of said joists.

4. The combination with the joists of a building, of sleepers extending parallel to and located between said joists, means for supporting said sleepers in a depending position, an imperforate ceiling element secured to said sleepers and located in spaced relation below said joists, and a monolithic body of tire-proof cellular insulating material poured into place on said ceiling element and embedding the sleepers and the lower extremities of said joists.

5. The combination with the joists of a building, of sleepers, cross bars secured to the sleepers7 the ends of the bars resting on said joists, a lire-proof ceiling element permanently secured to said sleepers, and a rigid body of cellular insulating lire-proof material rested on said ceiling elementand cmbedding the sleepers and portions of said joists.

Signed at Chicago, Illinois, this 13th of February A. D. 1925.

HAROLD S. ASHENHURST. 

